+struct bt_ctf_field_type *bt_ctf_stream_class_get_event_header_type(
+ struct bt_ctf_stream_class *stream_class)
+{
+ struct bt_ctf_field_type *ret = NULL;
+
+ if (!stream_class || !stream_class->event_header_type) {
+ goto end;
+ }
+
+ assert(stream_class->event_header_type);
+ bt_ctf_field_type_get(stream_class->event_header_type);
+ ret = stream_class->event_header_type;
+end:
+ return ret;
+}
+
+int bt_ctf_stream_class_set_event_header_type(
+ struct bt_ctf_stream_class *stream_class,
+ struct bt_ctf_field_type *event_header_type)
+{
+ int ret = 0;
+
+ if (!stream_class || !event_header_type || stream_class->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ assert(stream_class->event_header_type);
+ if (stream_class->event_header_type == event_header_type) {
+ goto end;
+ }
+ if (bt_ctf_field_type_get_type_id(event_header_type) !=
+ CTF_TYPE_STRUCT) {
+ /* An event header must be a structure */
+ ret = -1;
+ goto end;
+ }
+
+ bt_ctf_field_type_put(stream_class->event_header_type);
+ bt_ctf_field_type_get(event_header_type);
+ stream_class->event_header_type = event_header_type;
+end:
+ return ret;
+}
+
+struct bt_ctf_field_type *bt_ctf_stream_class_get_event_context_type(
+ struct bt_ctf_stream_class *stream_class)
+{
+ struct bt_ctf_field_type *ret = NULL;
+
+ if (!stream_class || !stream_class->event_context_type) {
+ goto end;
+ }
+
+ assert(stream_class->event_context_type);
+ bt_ctf_field_type_get(stream_class->event_context_type);
+ ret = stream_class->event_context_type;
+end:
+ return ret;
+}
+
+int bt_ctf_stream_class_set_event_context_type(
+ struct bt_ctf_stream_class *stream_class,
+ struct bt_ctf_field_type *event_context_type)
+{
+ int ret = 0;
+
+ if (!stream_class || !event_context_type || stream_class->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ if (bt_ctf_field_type_get_type_id(event_context_type) !=
+ CTF_TYPE_STRUCT) {
+ /* A packet context must be a structure */
+ ret = -1;
+ goto end;
+ }
+
+ bt_ctf_field_type_put(stream_class->event_context_type);
+ bt_ctf_field_type_get(event_context_type);
+ stream_class->event_context_type = event_context_type;
+end:
+ return ret;
+}
+